3724-65-0
crotonic acid
CAS: 3724-65-0
Molecular Formula: C4H6O2
3724-65-0 - Names and Identifiers
| Name | crotonic acid |
| Synonyms | crotonic 'rotonicacid 2-Butensαure crotonic acid a-butenoicacid α-Crotonic acid 3-Methylacrylsαure 3-methyl-acrylicaci 3-Methylacrylic acid β-Methylacrylic acid Acrylic acid, 3-methyl- Crotonic Acid Anhydride |
| CAS | 3724-65-0 |
| EINECS | 223-077-4 |
| InChI | InChI=1/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+ |
3724-65-0 - Physico-chemical Properties
| Molecular Formula | C4H6O2 |
| Molar Mass | 86.09 |
| Density | 1.027g/mLat 25°C(lit.) |
| Melting Point | 70-72°C(lit.) |
| Boling Point | 180-181°C(lit.) |
| Flash Point | 190°F |
| Water Solubility | soluble |
| Vapor Presure | 0.19 mm Hg ( 20 °C) |
| Vapor Density | 2.97 (vs air) |
| pKa | 4.80±0.10(Predicted) |
| Storage Condition | 2-8℃ |
| Refractive Index | 1.4210 (estimate) |
| MDL | MFCD00181389 |
| Physical and Chemical Properties | Monoclinic needle-like or prismatic crystals. |
| Use | Trans-butenoic acid is mainly used for the preparation of synthetic resins, plasticizers, drugs, but also for other organic synthesis |
3724-65-0 - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2823 8/PG 3 |
| WGK Germany | 3 |
| RTECS | GQ2900000 |
3724-65-0 - Upstream Downstream Industry
| Downstream Products | Crotamiton |
3724-65-0 - Reference Information
| FEMA | 3908 | (E)-2-BUTENOIC ACID |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | used in coatings, interpolymers, medicines, pesticides and other important organic chemical intermediates. trans-butenoic acid is mainly used to make synthetic resins, plasticizers, drugs, and also used in other organic synthesis |
| category | corroded articles |
| toxicity classification | low toxicity |
| acute toxicity | oral-rat LD50: 1000 mg/kg; Oral-mouse LD50: 4800 mg/kg |
| stimulation data | skin-rabbit 10 mg/24 hours |
| flammability hazard characteristics | flammability; thermal decomposition of toxic fumes |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Separate storage with oxidant and alkali |
| fire extinguishing agent | mist water, carbon dioxide, foam, dry powder |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:05:11
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